I have ordered a new hunting rifle and I need to get a scope for it. A friend of mine gets great deals on Leupold & Nikon. I am favoring the Leupold. I am trying to wrap my head around all of the different options. I would like to hear what some think of the different features.

Adjustable objective. Is it worth the money?
Side focus. Again is it worth the extra money?
40mm verse 50mm. I assume it collect more light, but is there any other benefit.

I have never spent more than $200 for a scope, but I am wanting to put something a little nicer on this gun. I would appreciate any of the feed back you have.